Xbox Music a top contender for T-Mobile's Music Freedom

T-Mobile CEO John Legere has given an update on the carrier's recent Un-carrier 5.0 and Un-carrier 6.0 announcements. Un-carrier 5.0 was the announcement of T-Mobile Test Drive, which lets people try T-Mobile's network for free. Un-carrier 6.0 was Music Freedom, which lets customers use several music services without that data usage counting against their high-speed data limit.